Shanghai

Chinese Development and Application of Test Platform for Deep-Sea Polymetallic Sulfide Mining

Li, Songyu (China Ship Scientific Research Center) | Du, Xinzhuang (China Ship Scientific Research Center) | Zhang, Luyao (Shanghai Marine Diesel Engine Research Institute) | Chen, Ken (China Ship Scientific Research Center) | Wang, Shuai (Shanghai Oriental Maritime Engineering Technology Co. Ltd)

OnePetroJune, 2022

ABSTRACT Because of the high cost and difficulty in the monitoring of underwater experiments of deep-sea mining equipment, this paper has developed a new polymetallic sulfide "mining and transferring" test platform. It realizes the basic conditions for conducting experimental research on deep-sea mineral mining, transfer, and delivery on land. The existing deep-sea mining systems and test platforms at home and abroad are investigated in this paper. It is determined that the test platform has the functions of mineral cutting, suction, secondary processing, storage, and lifting. To achieve the above functions, the test platform includes a pool, a high-power hydraulic source, a mobile crane, a cutting & collection module, a secondary processing module, a hose pump, a mineral separation module, a lifting pump, a buffer station, a cantilever crane, a centralized control room, etc. By establishing 3 circulation loops, the process of collection, transfer, and delivery can be tested individually or collaboratively. To ensure the productivity of the cutting & collection module, it is necessary to realize the automatic adjustment function of the cutting head's attitude. The kinematic model of the cutting arm is established and the range of motion is analyzed. The relationship between the vertical movement of the cutting head and the extension of the hydraulic cylinder is obtained by numerical calculation. Cement is used to simulate polymetallic sulfide mines, and the test platform is used to carry out linkage tests of mineral collection, transfer, and delivery. The test results show that the automatic adjustment function of the cutting head's attitude works well. The mineral cutting device developed has a production capacity of 45 t/h, and the particle size after the secondary processing of minerals is less than 30 mm. INTRODUCTION Submarine polymetallic sulfide deposits generally occur at water depths of tens of meters to 3,700 m. They are characterized by higher purity metal content than onshore deposits. And these minerals are rich in lead, zinc, copper, gold, silver and other metals. The resource potential is very considerable. It has attracted exploration activities from various countries. Canada's Nautilus Minerals has completed the development and delivery of three deep seabed mining equipment for commercial mining of polymetallic sulphide mines in its exclusive economic zone in Papua New Guinea in 2018 (Kawano and Hisatoshi, 2022). In September 2017, METI and JOGMEC conducted the world's first successful seafloor polymetallic sulphide mining and collection test (Okamoto, et al., 2018). Before the 2017 Japanese continuously lifting test of seafloor massive sulphides, numerous on land excavation tests and 140 m long loop tests have been conducted since 2012 (Okamoto, et al., 2019). The Chinese research teams from Central South University, Changsha Institute of Mining Research Co., China State Shipbuilding Co., Chinese Academy of Sciences, and Shanghai Jiaotong University have carried out a lot of theoretical analysis and experimental research. Several collection system devices have been developed for different types of minerals (Peng, 2020; Liu, Liu and Dai, 2014; Cao, Du, Song, Lin and Yang, 2020). With a large number of offshore tests, several research institutions have established more complete technical solutions for the development of deep-sea mineral resources. The key technology development and core equipment development capabilities have been mastered. However, the cost of sea trials remains high due to various uncertainties from the harsh environment at sea. A more cost-effective solution is to establish the appropriate experimental facilities on land.

OnePetro

ISOPE

ISOPE-I-22-002

The 32nd International Ocean and Polar Engineering Conference

Country: Asia > China > Shanghai > Shanghai (0.26)

Genre:

Research Report > New Finding (0.89)
Research Report > Experimental Study (0.89)

Industry:

Materials > Metals & Mining (1.00)
Energy > Oil & Gas > Upstream (1.00)

SPE Disciplines:

Data Science & Engineering Analytics > Information Management and Systems (0.89)
Production and Well Operations > Well & Reservoir Surveillance and Monitoring > Downhole and wellsite flow metering (0.47)

Technology: Information Technology (0.68)

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Numerical Simulation of the Capacity of High Standard Sea Dike Against Extreme Storm Surge

Wang, He (Shanghai Waterway Survey and Design Research Institute Co., Ltd, Shanghai) | Pan, Zhenhua (DHI CHINA, Shanghai) | Liu, Hua (School of NAOCE, Shanghai Jiao Tong University, Shanghai / MOE Key Laboratory of Hydrodynamics, Shanghai Jiao Tong University, Shanghai)

OnePetroJune, 2022

ABSTRACT In order to study the defense capability of the sea dike in Shanghai under the condition of sea level rise, a two-dimensional storm surge flood model with integrated sea and land was established. Through model calculation, the following conclusions are given: Under the condition of sea level rise and extreme storm surge, the main sea dike in Pudong area and Changxing Island area have overflowed. The designed protection capability does not match the fortification criteria of its defense against 200-year high tide level and 12-level wind and waves. Shanghai needs to further strengthen the construction of sea dike projects and improve the tide-proof standards. INTRODUCTION According to the forecast results of the 2020 China Sea Level Bulletin issued (Ministry of Natural Resources of the People's Republic of China, 2020), the sea level along the Shanghai coast will rise by 50-180 mm in the next 30 years. Based on the estimated results of global sea level changes and the water level data of more than 20 domestic tide gauge stations, domestic scholars have given a forecast that the coastal sea level of China will rise up to 20-60 cm by 2100 (Shen, 1998). Due to the severe land subsidence in the Yangtze River Estuary, the relative sea level rise rate in this region can be 5.44 mm/a, which is about three times the global sea level rise rate (Zhou, 2013). Based on the research of the variation trend of Relative Sea Level Rise (RSLR) in Shanghai in 2030, it is predicted that the RSLR in Pudong is about 8 mm/a, and the RSLR in Changxing and Hengsha Island is about 4-6 mm/a (Cheng, 2015). Fig.1 shows the location map of Yangtze River Estuary, Pudong New District, Changxing Island and Hengsha Island. Due to the impact of sea level rise and land subsidence, the flood control capability of the sea dike along the coast of Shanghai during storm surge needs to be further investigated. Based on a combination of topographical changes and changes in land cover types, RSLR extends storm surge inland. On the basis of RSLR phenomenon, numerous scholars have carried out in-depth research on extreme storm surge, coastal floods and their effects (including tide level dynamics, submerged extent and seabed deposition, etc.) through numerical simulations (Ferreira, 2014, Chen, 2019, Zhao, 2014, Yi, 2017, Chen, 2015). Its series of achievements are of great significance for disaster prevention and mitigation (Kuang, 2015, Wang, 2018).

OnePetro

ISOPE

ISOPE-I-22-439

The 32nd International Ocean and Polar Engineering Conference

calculation model, changxing island, coefficient, estuary, extreme storm surge, flood, reservoir simulation, sea dike, sea level rise, Shanghai, storm surge, storm surge flood calculation model, Typhoon, wind speed, yangtze estuary, yangtze river estuary

Country: Asia > China > Shanghai > Shanghai (1.00)

SPE Disciplines:

Data Science & Engineering Analytics > Information Management and Systems (0.85)
Reservoir Description and Dynamics > Reservoir Simulation (0.70)

Technology: Information Technology > Mathematics of Computing (0.61)

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The Design of Well Cement Slurry with Low Hydration Exothermic for Cementing Natural Gas Hydrate Reservoir Under Deep Water

OnePetroJune, 2022

ABSTRACT Gas hydrate dissociation would damage the cementing quality seriously due to the hydration exothermic of cement slurry. Therefore, the well cement slurry with low hydration exothermic is necessary. The design of well cement slurry with low hydration heat mainly includes three steps. First, high-strength metakaolin-based hollow-core microspheres (HMHM) were prepared. Second, phase change materials (PCM) was applied for encapsulating HMHM to form energy storage microsphere (ESM). Finally, the hydration heat of well cement with different dosage of ESM were tested, and the strength, rheological property, sedimentation stability and other basic properties were also evaluated. INTRODUCTION Hydrate reservoirs with high pressure and low temperature are distributed in offshore deep-water areas (Ravi, 1999; Armstrong, 2002). In the process of deep-water cementing, the temperature around the wellbore increases due to the heat release of cement slurry hydration, which destroys the stability of natural gas hydrate (Wang, 2019). The decomposition of natural gas hydrate will seriously damage the cementing quality (Xu, 2005). Paraffin is a phase change materials, which can effectively reduce the hydration heat release of cement, but paraffin can not be directly added to cement. Therefore, HMHM were introduced as new energy storage microspheres to carry PCM to avoid its directcontact with the cement slurry. EXPERIMENTAL Materials The hollow microspheres were prepared by inverse suspension polymerization, which regarded metakaolin as raw material and regarded alkali solution as activator. Metakaolin was provided by Yukun Mineral Company, Jiaozuo, China. Sodium hydroxide and sodium silicate were provided by Xilong Science and Technology Co. Ltd. and Guangzhou Julan Chemical Co. Ltd. PCM-30 (variation range of phase transition temperature: 15-40 °C) is a thermally stable and reliable oily hydrocarbon (No degradation occurring below 100 °C and continuous melting and freezing cycle shown), which has high phase transformation latent heat storage capacity (189 J / g). Its latent heat and temperature remain unchanged after multiple endothermic and exothermic processes, and there is no phase separation and corrosivity. Waterborne bisphenol A epoxy resin (ER) and waterborne polyamine epoxy curing agent are produced by Shanghai Hanzhong Coatings Co. Ltd., China. Class G oil well cement (600 mesh) is produced by Sichuan Jiahua Special Cement Co. Ltd. The specific surface area of Class G oil well cement is 332 m / kg, and the density of cement powder is 3.1g/m. Micro silicon (1000 mesh) was provided by Po Ken International Trading Company, Shandong province, China, and floating beads (6000 mesh) from Maanshan Institute of Mining Research, Anhui province, China. Fluid loss additive (polycarboxylic acids) and dispersant (sulfonated aldehydes and ketones) were provided by BO-XING engineering science and technology company of CNPC, Tianjin, China.

OnePetro

ISOPE

ISOPE-I-22-094

The 32nd International Ocean and Polar Engineering Conference

Country:

Asia > China > Shanghai > Shanghai (0.25)
Asia > China > Shandong (0.25)
Asia > China > Tianjin > Tianjin (0.24)
(2 more...)

Industry:

Energy > Oil & Gas > Upstream (1.00)
Materials > Chemicals > Commodity Chemicals > Petrochemicals (0.70)
Government > Regional Government > Asia Government > China Government (0.49)

SPE Disciplines: Well Drilling > Casing and Cementing > Cement formulation (chemistry, properties) (1.00)

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2016 Dixia Fan

SPE WebsiteSeptember, 2021

Dixia Fan Dixia Fan is currently a PhD candidate at MIT's Department of Mechanical Engineering. He holds a bachelor's of science in ocean engineering from Shanghai Jiao Tong University (SJTU) and a master's of science from MIT. During his undergraduate years, he founded the SJTU Intellectual Vehicle Lab. Under his direction, the lab received financial support from the university and several national companies. Fan also established extracurricular courses for SJTU students and served as a lecturer for three courses: Learning Embedment Development with AT Series, Winform Development with C#.net, and 3D Design and Animation.

SPE Website

american shipping bureau scholarship, deep-ocean technology, deep-water blow-out preventer, design and animation, Dixia Fan, extracurricular course, hydrodynamic coefficient, learning embedment development, mining oil and ga conference, mit spe student chapter, PhD candidate, sjtu intellectual vehicle lab, undergraduate year, Upstream Oil & Gas, winform development

Country: Asia > China > Shanghai > Shanghai (0.27)

Industry:

Education (0.46)
Energy > Oil & Gas > Upstream (0.40)

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Shell, PetroChina Ink 5-Year Carbon-Neutral LNG Deal

Journal of Petroleum TechnologyJuly, 2021

Shell, through Shell Eastern Trading, has signed a 5-year contract to supply PetroChina with carbon-neutral liquefied natural gas (LNG) cargos, using carbon credits to offset emissions across the LNG value chain. Shell will use offsets from its own portfolio of nature-based emission-reduction projects, the company said in announcing on 13 July that it had made its first delivery to PetroChina at the port of Dalian. Shell's first carbon-neutral LNG delivery to the Chinese mainland occurred a year ago under a contract signed on 22 June 2020 to deliver two cargos to CNOOC Gas & Power Group Co. Ltd. (CNOOC), a wholly owned subsidiary of China National Offshore Oil Corporation, according to Shell's website. Shell noted that CNOOC planned to auction both of its carbon-neutral LNG cargoes through the Shanghai Petroleum and Gas Exchange. Other credits may come from Shell-supported reforestation projects developed with the Qinghai Forestry Bureau in Qinghai and Xinjiang provinces in China.

Journal of Petroleum Technology

cargo, climate change, Cnooc, contract, gas monetization, ink 5-year carbon-neutral lng deal, liquefied natural gas, liquified natural gas, LNG, Midstream Oil & Gas, petrochina ink

Country:

Asia > China > Xinjiang (0.27)
Asia > China > Shanghai > Shanghai (0.27)
Asia > China > Liaoning > Dalian (0.27)

Industry:

Government > Regional Government > Asia Government > China Government (1.00)
Energy > Oil & Gas > Midstream (1.00)

SPE Disciplines:

Health, Safety, Environment & Sustainability (1.00)
Facilities Design, Construction and Operation > Natural Gas Conversion and Storage > Liquified natural gas (LNG) (1.00)

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Research on the Optimization of FPSO Strength Test Schemes

Yin, Yan (Shanghai Waigaoqiao Shipbuilding Co, Ltd) | Ma, Tao (Shanghai Waigaoqiao Shipbuilding Co, Ltd) | Wang, Yuhan (Shanghai Waigaoqiao Shipbuilding Co, Ltd) | Kong, Weiwen (Shanghai Waigaoqiao Shipbuilding Co, Ltd) | Zhang, Huan (Shanghai Waigaoqiao Shipbuilding Co, Ltd)

OnePetroJune, 2021

Abstract In order to find out and eliminate the safety hidden danger of ship tank structure strength and airtight performance, in addition to improving the level of ship construction and welding, it is critical to carry out tightness and strength test. It is found that the conventional strength test method has some disadvantages and is not suitable for every shipyard. Therefore, based on the FPSO project under construction, combined with the situation of Shanghai Waigaoqiao shipyard Wharf, the FPSO strength test optimization scheme will be put forward considering the economy and operability. Then NAPA software was used to check the floating state, structural strength and stability to verify the reliability of the strength test scheme. INTRODUCTION In recent years, ship accidents happen frequently. According to the statistical results of accident investigation, more than 64% of accidents are caused by defects in the structural strength and tightness of ship tanks (Yang, 2012). Once there are defects in the structure and tightness of ship tank, it may lead to structural leakage, fracture, and even cause ship sinking and other serious consequences. In order to find and eliminate the hidden danger of strength and airtight performance of ship tanks as early as possible, shipyards should not only improve the level of shipbuilding and welding technology, but also carry out reliable airtight and structural strength tests to verify the watertight and airtight of the tank and the rationality of structural design (Gao, 2011). Strength test is the main mean to ensure the integrity of ship tank and prevent accidents. Therefore, according to the construction procedure of shipyard, the selection of suitable test method can reduce construction period and cost of the test (Huang, 2009). Under the premise of full consideration of saving test cost and strong operability, the strength test schemes will need to be analyzed and studied. Therefore, based on the actual situation of Shanghai Waigaoqiao wharf and owner's requirements, this paper analyzes the logic of the test sequence, the scientific nature of the test scheme and the safety of the on-site implementation. The optimized scheme of FPSO strength test is proposed. Then based on the FPSO project under construction, NAPA software was used to loading in different test stages. At the same time, the buoyancy, structure strength and stability of FPSO are checked to verify the reliability of the strength test scheme.

OnePetro

ISOPE

ISOPE-I-21-4161

The 31st International Ocean and Polar Engineering Conference

Country: Asia > China > Shanghai > Shanghai (0.46)

Industry:

Transportation > Marine (1.00)
Energy > Oil & Gas > Upstream (0.47)

SPE Disciplines: Facilities Design, Construction and Operation > Offshore Facilities and Subsea Systems > Floating production systems (1.00)

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China Shipyard Launches Liftboat, Contracts for Dive Support Vessel

Journal of Petroleum TechnologyDecember, 2020

Mekers Offshore, a Zhejiang-based company, launched its first in a series of liftboats at Shanghai Bestway Dajin Heavy Industries yard in Jiangsu, China. Aqualis Offshore, an Oslo-based company, was contracted by Mekers Offshore to supervise the construction of two new liftboats, each valued at USD 58 million. Mekers and Shanghai Bestway are majority-owned by the same controlling shareholder. The self-elevating liftboat is a four-legged, DP2, self-propelled vessel with a working depth of 70 m. It can house up to 250 people and is suitable for workover and well intervention with a large open deck area capable of carrying equipment and supplies for offshore exploration, production, and support activities.

Journal of Petroleum Technology

China Shipyard launch Liftboat, construction work, contract, Dive Support Vessel, diver, meker offshore, Offshore, operation, platform, subsea system, Upstream Oil & Gas, Wärtsilä

Country: Asia > China > Shanghai > Shanghai (0.58)

Industry: Energy > Oil & Gas > Upstream (1.00)

SPE Disciplines: Facilities Design, Construction and Operation > Offshore Facilities and Subsea Systems (1.00)

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New-Design Containment System To Be Deployed on LNG Carrier for China

Journal of Petroleum TechnologyDecember, 2020

LNT Marine's LNG A-Box containment system will be deployed in a future LNG carrier, designed in collaboration with Wuhu Shipyard and Shanghai Merchant Ship Design and Research Institute (SDARI) for trade on the Yangtze river in China. Part of a joint-design project cooperation, the three companies will design a 40,000-m3 shallow-draft LNG carrier known as the LNT40-WuhuMax, based on the LNT A-Box system. The vessel is suitable for reloading of cargoes, and the draft and air draft enable it to serve smaller terminals in coastal area where larger ships are not feasible. The LNG A-Box was first deployed on the Saga Dawn LNG carrier, which completed its maiden voyage in April and discharged its first cargo. The containment system technology is based on a self-supporting prismatic tank that can enable more shipyards to build LNG carriers at a reasonable cost.

Journal of Petroleum Technology

cargo, China, deployed, freight & logistics services, gas monetization, liquified natural gas, LNG carrier, Midstream Oil & Gas, new-design containment system

Country: Asia > China > Shanghai > Shanghai (0.31)

Industry:

Transportation > Freight & Logistics Services > Shipping > Tanker (1.00)
Energy > Oil & Gas > Midstream (1.00)

SPE Disciplines: Facilities Design, Construction and Operation > Natural Gas Conversion and Storage > Liquified natural gas (LNG) (1.00)

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Production Enhancement in Deep Sour Gas Field: A Case Study in China

Guo, Hongzhi (Schlumberger) | Li, Huigeng (Schlumberger) | Weng, Zhiyong (Schlumberger) | Tao, Ke (Schlumberger) | Wang, Dong (Schlumberger)

OnePetroOctober, 2020

Abstract Puguang is the biggest sour gas field in China with 17% H2S and 9% CO2 concentration and is the major gas sources for the pipeline from Sichuan to Shanghai. It's important to keep the gas wells healthily and steadily producing. However, the production is continually declining due to water coning, scale buildup and formation pressure dropping. It's urgent to perform well intervention effectively and economically to increase the well production. Production logging in multiple wells identified that inflow zones were less than 30% of perforation interval because of formation invasion and perforation tunnel plugging from initial completion. To release the potential productivity from nonproducing zones, reopening the perforations is critical to reverse the trend of production decline. To pass through the 3.5-in tubing with minimal restriction of 2.7-in and to effectively perforate the 7-in production casing and the carbonate formation, a 2.5-in spiral-exposed perforation system was finally selected as the optimized solution that can achieve the deepest formation penetration compared with conventional carrier system from simulations with rock-based perforation model. The spiral-exposed perforation system was modified to be H2S resistant, and wellbore dynamic simulation was conducted to minimize the gun shock to avoid gun drop during detonation. The detailed job design and risk mitigation plan were made as well to avoid any failure in such a highly corrosive environment with well depth up to 6,000 m. The first reperforation job was conducted successfully, and the well production increased 130,000 m/day or 22.8%, and afterward, production logging confirmed that zonal production had significantly improved from the newly perforated interval. Then another seven wells were reperforated with an interval of 30 m to 45 m and average 100,000 m/day gas production increment or 20% per well was achieved. It's proven that reperforation with redesigned exposed perforation system is the effective and economical way to increase production in the Puguang gas field. This paper illustrates how and what we do for exposed system improvement, candidate well selection, planning, and executing the through-tubing exposed perforation in such extremely challenging conditions. It also discusses lessons learnt and recommendations for future well intervention to steadily increase the well production in the Puguang gas field.

OnePetro

doi: 10.2118/202012-MS

SPE

SPE-202012-MS

SPE Russian Petroleum Technology Conference

absorber, case study, China, Completion Installation and Operations, deep sour gas field, detonation, gas field, gun system, Modeling & Simulation, penetration, perforating system, perforation, Petroleum Engineer, production enhancement, production logging, Upstream Oil & Gas, weak point, wellbore

Country:

Asia > China > Sichuan (0.71)
Asia > China > Shanghai > Shanghai (0.24)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

Asia > China > Sichuan > Sichuan Basin > Puguang Field (0.99)
North America > United States > Louisiana > China Field (0.97)

SPE Disciplines:

Well Completion > Completion Installation and Operations > Perforating (1.00)
Production and Well Operations (1.00)

Technology: Information Technology (0.93)

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Developments of Experimental Facilities and Techniques for Floating Wind Turbine Model Tests

Wen, Binrong (Shanghai Jiao Tong University) | Tian, Xinliang (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University) | Jiang, Zhihao (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University) | Li, Zhanwei (Shanghai Jiao Tong University) | Zhao, Yongsheng (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University) | Peng, Tao (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University) | Peng, Zhike (Shanghai Jiao Tong University)

OnePetroOctober, 2020

The increasing interests in Floating Wind Turbine (FWT) technology have significantly stimulated the developments of FWT model testing facilities and techniques. A crucial but challenging issue of the FWT model test is how to maintain the model fidelity. This paper develops an FWT experimental apparatus with more attention on the system fidelity, in terms of the environment simulation system, the integrated FWT model, and the affiliated condition monitoring system. Based on the developed high-fidelity testing system, a three-step testing scheme is proposed to investigate the FWT coupling dynamics. Fruitful results are achieved and some preliminary observations are presented. NOMENCLATURE CMS - Condition Monitoring System DOF - Degree of Freedom ESS - Environment Simulation System FBG - Fiber Bragg Grating FORJ - Fiber Optical Rotary Joint FSR - Froude-Scale Rotor FWT - Floating Wind Turbine LDM - Load Distribution Match PSR - Performance-Scale Rotor S4 - Stepped Short Spar for Shallow water SJTU - Shanghai Jiao Tong University SKLOE - State Key Laboratory of Ocean Engineering WCG - Wave & Current Generator WGS - Wind Generation System INTRODUCTION The impressive amount and high quality of the offshore wind resource are attracting wind turbines to develop from land to ocean, and even deep seas. As for offshore sites with water depths larger than 60 meters, the concept of Floating Wind Turbines (FWTs) is proposed dedicatedly to improve the system reliability and to reduce the economic costs (Heronemus, 1972). In recent years, the FWT technology has gain rapid developments. Many novel FWT concepts have been proposed (Meng et al, 2017; Wen et al, 2020a). Several demonstration projects and even commercial FWT wind farms have already achieved success, greatly encouraging the FWT communities. It is believed that more commercial floating wind farms will appear at the sea level in the near future. To reach such objectives, more extensive academic investigations are needed to reveal the FWT coupling dynamics as well as its operating and degradation mechanisms.

OnePetro

ISOPE

ISOPE-I-20-1309

The 30th International Ocean and Polar Engineering Conference